// Dial ...
func (d *Device) Dial(ctx context.Context, a ble.Addr) (ble.Client, error) {
d.sendCmd(d.cm, 31, xpc.Dict{
"kCBMsgArgDeviceUUID": xpc.MakeUUID(a.String()),
"kCBMsgArgOptions": xpc.Dict{
"kCBConnectOptionNotifyOnDisconnection": 1,
},
})
select {
case <-ctx.Done():
return nil, ctx.Err()
case c := <-d.chConn:
c.SetContext(ctx)
return NewClient(c)
}
}
// Dial ...
func (h *HCI) Dial(ctx context.Context, a ble.Addr) (ble.Client, error) {
b, err := net.ParseMAC(a.String())
if err != nil {
return nil, ErrInvalidAddr
}
h.params.connParams.PeerAddress = [6]byte{b[5], b[4], b[3], b[2], b[1], b[0]}
if _, ok := a.(RandomAddress); ok {
h.params.connParams.PeerAddressType = 1
}
if err = h.Send(&h.params.connParams, nil); err != nil {
return nil, err
}
var tmo <-chan time.Time
if h.dialerTmo != time.Duration(0) {
tmo = time.After(h.dialerTmo)
}
select {
case <-ctx.Done():
return nil, ctx.Err()
case <-h.done:
return nil, h.err
case c := <-h.chMasterConn:
return gatt.NewClient(c)
case <-tmo:
err := h.Send(&h.params.connCancel, nil)
if err == nil {
// The pending connection was canceled successfully.
return nil, fmt.Errorf("connection timed out")
}
// The connection has been established, the cancel command
// failed with ErrDisallowed.
if err == ErrDisallowed {
return gatt.NewClient(<-h.chMasterConn)
}
return nil, errors.Wrap(err, "cancel connection failed")
}
}